Optical Centre Punch
 

These are handy for more accurate centre punching for drilling . I have one . Some people make them as a project rather than buying one. I normally measure 3 times and still manage to get it wrong.
https://m.youtube.com/watch?v=1V5H2O_0Udk

I tend to apply advanced swearometrics in my workshop.

I recently gad to cut - re weld - cut - reweld repeatedly while making up a lightweight angle iron frame for a job 🤪

Cheers

Phill